<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <script src="./lib/vue-2.5.9.js"></script>
</head>

<body>
  <div id="app">
    <!-- <h1 style="color:red; font-size: 14px;">这是大标题</h1> -->
    <h1 :style="[styleObj2, styleObj1]">这是大标题</h1>

  </div>

  <script>
    // 创建 Vue 实例，得到 ViewModel
    var vm = new Vue({
      el: '#app',
      data: {
        styleObj1: { color: 'red', 'font-size': '14px' },
        styleObj2: { 'font-style': 'italic' }
      },
      methods: {}
    });
  </script>
</body>

</html>